rune::fns

Function mapconcat

Source 
pub(crate) fn mapconcat(
    function: &Rt<Slot<Gc<FunctionType<'_>>>>,
    sequence: &Rt<Slot<Gc<ObjectType<'_>>>>,
    seperator: Option<&Rt<Slot<Gc<&LispString>>>>,
    env: &mut Rt<Env<'_>>,
    cx: &mut Context<'_>,
) -> Result<String>